Automatic device for stitching hatbrims



Nov. 20, 1945. M. scHLoss AUTOMATIC DEVICE FOR STITQHING HAT BRIMS FiledMay 20, 1944 INVENTOR. Mokms Semoss ATTOKNEY.

the accompanying drawing, in

- varying pitch by means of gear i2.

Patented Nov. 20, 1945 4 OFFICE AUTOMATIC DEVI HATB on Fort s'rrrcnmcanus MorrisSchloss, New'York, N. Y. Application May 20, 1944, Serial No.536,456 '3 Claims. (Cl. 112-2) This invention relates to an attachmentfor use with a sewing machine for automatically stitching oval-shapedfiat hat-brims with spiral continuous stitches uniformly spaced apart.

More particularly, it is an object of my invention to provide anautomatic device which will accommodate oval hat-brims of differentdimensions and stitch same with continuous spiral stitches uniformlyspaced apart.

A further object is to provide a screw shaft of uniform outside diameterand having threads of varying pitch upon which removable followers cantravel.

A further object is to provide a hat-brim holder which can be easilyadjusted to hold oval hatbrlms of different sizes so that the hat-brimcan revolve readily during the stitching operation.

Another object is to provide an automatic stitching device of simpleconstruction which will permit an unskilled operator to produce the kindof precision stitching that could only be produced by one highly skilledand operating by hand.

Another object is to provide hat-brim holder for stitching so that thehat-brims to be stitched can be easily inserted into the holderreplacing the stitched hat-brim.

Still another object is to provide a device upon which bias brims may bestitched after the headsize is shlrred.

' For a fuller understanding of the nature and objects of my invention,reference is had to the following detailed description in connectionwith which:

Fig. l is a plan view of my device.

Fig. 2 is a front view of Fig. 1.

Fig. 3 is an end view of the follower upon the Shaft. 1

Fig. 4 is an enlarged plan view of a part of the hat-brim holder showingthe spring finger.

Fig. 5 is a plan view of the screw shaft upon which the follower rides.

Referring to the drawing, a shaft i0, located beneath the bed of thesewing machine, drives a screw shaft ii of uniform outside diameter andThe shaft there will be sufilcient tension to retain the follower up'onshaft ii. A pair of finger pieces I! and 20. are used for separating thesplit follower ii for removing the device from the threaded shaft ii.

Attached to the top portion of follower i8 is a bottom plate 2! having avertical side portion 22 and a. top portion 23 open at 24 so thathatbrims 25 of different sizes can be accommodated within the holder.The end of the side portion 22 has a spring finger 26 which resilientlyrides upon the edge 21 of the hat-brim 25 during the stitchingoperation.

The bottom plate 2! has a slot 28 in which an adjustable pivot 28attached to a resilient holding arm 30 is positioned. An adjustablerevolvable post ii is also positioned in slot 28 so that it can beadjusted to accommodate the width of the oval fiat hat-brim 25 andrevolve during the stitching of the hat-brim 25.

The operation of my device in connection with a stitching machine is asfollows:

A'fiat oval hat-brim 25 is placed upon the bottom plate 2| of the holderand resiliently held in position by pivoted arm 30. The post 3i has beenfixed to accommodate hat-brims of uniform-width.

' Finger pieces l9 and 20 are pressed together open- H has its bearingsat is and it in suitable brackets, and is provided with split removablefollowers I! having recesses and a pin it which are adapted to fit uponthe threaded shaft ii and a pin it which rides in the threaded groove sothat, upon rotation of shaft ii, follower i5 is caused tomove to theright. Follower it is hinged at H and is provided with a spring it, sothat when follower it is placed upon the screw shaft ii,

ing the split follower i5 and is then placed upon threaded shaft ii atthe extreme left end with pin i8 resting in the groove of the thread ofthe shaft ii. The needle 32 of the machine is placed at the startingpoint 33 of the stitching. The operator then starts the machine causinggear it to revolve, which rotates the threaded shaft ii. The hat-brim 25will be fed forward and pulled through the holder by the feed dogs ofthe stitching machine and at the same time the holder and follower IEwill move transversely to the right on the threaded shaft i i since pini 6 rides within the groove of the thread. I

Since the thread of shaft ii is of varying pitch, as shown clearly inFig. 5, the rows of stitching will be uniformly spaced apartcompensating for the ever decreasing oval of the hat-brim 25. When thespiral stitching is completed, the operator stops the machine and caneasily remove the holder by compressing finger pieces i9 and 20, thusopening the follower it for easy removal from shaft i i. Another holdercontaining a similar hat-brim 25in position within the holder can thenbe attached and operated in the same manner. If the operator desires, hecan use the same holder and move it to its original position at theextreme left by compressing the finger pieces i9 brim another can beeasily inserted. However, production will be more rapid by the use ofextra holders which can be loaded while the operator is stitchingpreviously loaded hat-brims.

g It is obvious that various clinics and modifications may be made inthe details of construction without departing from the general spirit ofthe invention, as set forth in the appended claims.

I claim:

i. In combination with a stitching machine, a holder adapted to hold ahat-brim for feeding movement thereof through the holder by the feed dogof the machine, said holder comprising a substantially flat bottom platewith an arcuate end, acurved side member of the same curvature assaidarcuate end with aresilient spring linger at one end of said sidemember, a top plate, an opening between said top and bottom plate topermit hat brims of different dimensions to be stitched, a resilientmovable holding arm for retaining the hat brim during the stitchingoperation, a split follower, finger pieces for opening said splitfollower against spring tension, a threaded shaft of uniform outsidediameter and varying pitch, a pin in said follower adapted to ridewithin the thread of said threaded shaft for moving said follower andholder laterally of the line of feeding movement by the feed dog of saidmachine when said threaded shaft is rotated;

2. In combination with a stitching machine, a holder adapted to hold ahat-brim for ieeding movement thereof through the holder by the feed dogof the machine. said holder comprising a top plate, a substantially iiatbottom plate, and a curved side, said side having a spring finger at oneend, a resilient adjustable holding arm pivoted upon said bottom platefor retaining the hat brim during the stitching operation, an adjustablepost upoansaid bottom plate to accommodate hat brims of erent sizes. asplit follower, ringer pieces for opening said split follower againstspring tension. a threaded shaft of uniform outside dimension andvarying pitch, a pin in said follower and adapted to ride within thethread of said threaded shaft for moving said follower and holderlaterally of the line of feeding movement by the feed dog of saidmachine when said threaded shaft is rotated.

3. In combination with a stitching machine having a threaded shaft aholder adapted to hold a flat oval hat brim for feeding movement throughthe holder by the feed dog of the machine, said holder comprising a flatbottom plate having a curved end, a curved side member and a top plate.said side member having a resilient spring finger at one end thereof anopening between said top and bottom plate to accommodate hat brims ofdiflerent dimensions, a slot in said bottom plate, an adjustable pivotedresilient holding arm for resiliently holding said hat brim in movableposition during stitching, an adjustable revolvable post to accommodatedifferent widths of hat brims whereby upon rotation of said threadedshaft said holder and said follower move laterally of the line offeeding movement by the feed dog of said machine.

MORRIS 8031.088.

